/* ==========================================================================
   开元棋牌中文站 · 共享样式表  /assets/site.css
   设计骨架：目录型内容地图 · 深夜棋牌室 × 数字控制台
   ========================================================================== */

/* --- 1. Reset ------------------------------------------------------------ */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  margin: 0;
  padding: 0;
  -webkit-text-size-adjust: 100%;
}

body { margin: 0; }

h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }

ul, ol { margin: 0; padding: 0; list-style: none; }

a { color: inherit; text-decoration: none; }

button, input, select, textarea { font: inherit; color: inherit; }

button { background: none; border: 0; padding: 0; cursor: pointer; }

img, svg, video { display: block; max-width: 100%; }

table { border-collapse: collapse; width: 100%; }

/* --- 2. 设计令牌 --------------------------------------------------------- */
:root {
  /* 色板 */
  --ky-ink: #0A0E0D;
  --ky-surface-1: #101815;
  --ky-surface-2: #17241F;
  --ky-surface-3: #22362D;
  --ky-line: #345046;
  --ky-moss: #4C6B5C;
  --ky-gold: #C9A227;
  --ky-gold-soft: #E7CB77;
  --ky-vermillion: #BE3A2B;
  --ky-paper: #EDE9E0;
  --ky-muted: #9DACA3;
  --ky-on-gold: #1B1404;

  /* 圆角 */
  --ky-r-xs: 10px;
  --ky-r-sm: 16px;
  --ky-r-md: 22px;
  --ky-r-lg: 30px;
  --ky-r-pill: 999px;

  /* 字体 */
  --ky-font-display: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  --ky-font-sans: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --ky-font-mono: "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", Menlo, Consolas, "Courier New", monospace;

  /* 字号刻度 12/14/16/20/28/40/64/96 */
  --ky-fs-12: 0.75rem;
  --ky-fs-14: 0.875rem;
  --ky-fs-16: 1rem;
  --ky-fs-20: 1.25rem;
  --ky-fs-28: 1.75rem;
  --ky-fs-40: 2.5rem;
  --ky-fs-64: 4rem;
  --ky-fs-96: 6rem;

  /* 节奏 */
  --ky-pad-x: 20px;
  --ky-gap: clamp(16px, 2.2vw, 28px);
  --ky-ease: cubic-bezier(0.2, 0.6, 0.2, 1);
}

@media (min-width: 700px) {
  :root { --ky-pad-x: 28px; }
}

@media (min-width: 1100px) {
  :root { --ky-pad-x: 40px; }
}

/* --- 3. 基础排版 --------------------------------------------------------- */
body {
  background-color: var(--ky-ink);
  color: var(--ky-paper);
  font-family: var(--ky-font-sans);
  font-size: var(--ky-fs-16);
  font-weight: 400;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection {
  background: var(--ky-gold);
  color: var(--ky-on-gold);
}

.ky-display {
  font-family: var(--ky-font-display);
  font-weight: 900;
  font-size: clamp(2.75rem, 9vw, 6rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
}

.ky-h2 {
  font-family: var(--ky-font-sans);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.ky-h3 {
  font-family: var(--ky-font-sans);
  font-weight: 700;
  font-size: var(--ky-fs-20);
  line-height: 1.35;
}

.ky-lead {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  line-height: 1.7;
  color: var(--ky-paper);
}

.ky-body {
  font-size: var(--ky-fs-16);
  line-height: 1.75;
  color: var(--ky-paper);
}

.ky-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ky-font-mono);
  font-size: var(--ky-fs-12);
  letter-spacing: 0.16em;
  color: var(--ky-moss);
  text-transform: uppercase;
}

.ky-mono {
  font-family: var(--ky-font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

p + p { margin-top: 0.9em; }

strong { font-weight: 700; }

/* --- 4. 布局容器与网格 --------------------------------------------------- */
.ky-container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding-left: var(--ky-pad-x);
  padding-right: var(--ky-pad-x);
}

.ky-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--ky-gap);
}

.ky-col-3 { grid-column: span 3; }
.ky-col-4 { grid-column: span 4; }
.ky-col-5 { grid-column: span 5; }
.ky-col-6 { grid-column: span 6; }
.ky-col-7 { grid-column: span 7; }
.ky-col-8 { grid-column: span 8; }
.ky-col-9 { grid-column: span 9; }
.ky-col-12 { grid-column: span 12; }

@media (max-width: 899px) {
  .ky-col-3, .ky-col-4, .ky-col-5 { grid-column: span 6; }
  .ky-col-6, .ky-col-7, .ky-col-8, .ky-col-9 { grid-column: span 12; }
}

@media (max-width: 619px) {
  .ky-col-3, .ky-col-4, .ky-col-5 { grid-column: span 12; }
}

.ky-section { padding: clamp(48px, 7vw, 96px) 0; }
.ky-section--narrow { padding: clamp(26px, 4vw, 52px) 0; }

.ky-stack > * + * { margin-top: 18px; }

.ky-rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: linear-gradient(90deg, var(--ky-line), rgba(52, 80, 70, 0));
}

.ky-anchor { scroll-margin-top: 110px; }

/* --- 5. 跳转链接与焦点 --------------------------------------------------- */
.ky-skip {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 200;
  padding: 10px 20px;
  border-radius: var(--ky-r-pill);
  background: var(--ky-gold);
  color: var(--ky-on-gold);
  font-weight: 700;
  font-size: var(--ky-fs-14);
  transition: top 0.18s var(--ky-ease);
}

.ky-skip:focus { top: 14px; }

:focus-visible {
  outline: 2px solid var(--ky-gold-soft);
  outline-offset: 3px;
}

#main-content { scroll-margin-top: 96px; }

#main-content:focus-visible {
  outline: 2px solid var(--ky-gold-soft);
  outline-offset: -4px;
}

/* --- 6. 页头 ------------------------------------------------------------- */
.ky-header {
  position: relative;
  z-index: 50;
  background-color: var(--ky-ink);
  border-bottom: 1px solid var(--ky-line);
}

.ky-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 16px;
  padding-bottom: 16px;
}

/* 6.1 品牌块 */
.ky-brand { min-width: 0; }

.ky-brand__link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.ky-brand__mark {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  border-radius: 15px;
  border: 1px solid var(--ky-line);
  background-color: var(--ky-surface-2);
  color: var(--ky-gold);
  font-family: var(--ky-font-mono);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: border-color 0.18s var(--ky-ease), color 0.18s var(--ky-ease);
}

.ky-brand__link:hover .ky-brand__mark,
.ky-brand__link:focus-visible .ky-brand__mark {
  border-color: var(--ky-gold);
  color: var(--ky-gold-soft);
}

.ky-brand__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.ky-brand__name {
  font-family: var(--ky-font-sans);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.3;
  color: var(--ky-paper);
  white-space: nowrap;
}

.ky-brand__meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ky-font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--ky-muted);
  white-space: nowrap;
}

.ky-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--ky-vermillion);
  flex: 0 0 auto;
}

/* 6.2 栏目索引 */
.ky-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ky-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.ky-nav__link {
  display: inline-block;
  padding: 8px 12px;
  border-radius: var(--ky-r-pill);
  border: 1px solid transparent;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ky-muted);
  white-space: nowrap;
  transition: color 0.18s var(--ky-ease),
              border-color 0.18s var(--ky-ease),
              background-color 0.18s var(--ky-ease);
}

.ky-nav__link:hover,
.ky-nav__link:focus-visible {
  color: var(--ky-paper);
  border-color: var(--ky-line);
  background-color: var(--ky-surface-2);
}

.ky-nav__link[aria-current="page"] {
  color: var(--ky-gold-soft);
  background-color: var(--ky-surface-3);
  border-color: var(--ky-line);
}

/* 6.3 主行动按钮 */
.ky-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-left: 8px;
  padding: 11px 20px;
  border-radius: var(--ky-r-pill);
  border: 1px solid transparent;
  background-image: linear-gradient(180deg, var(--ky-gold-soft), var(--ky-gold));
  color: var(--ky-on-gold);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: filter 0.18s var(--ky-ease), box-shadow 0.18s var(--ky-ease);
}

.ky-cta:hover,
.ky-cta:focus-visible {
  filter: brightness(1.08);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.18);
}

/* 6.4 移动开关 */
.ky-nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: var(--ky-r-pill);
  border: 1px solid var(--ky-line);
  background-color: var(--ky-surface-2);
  color: var(--ky-paper);
  font-size: var(--ky-fs-14);
  font-weight: 700;
  transition: border-color 0.18s var(--ky-ease), background-color 0.18s var(--ky-ease);
}

.ky-nav-toggle:hover,
.ky-nav-toggle:focus-visible {
  border-color: var(--ky-gold);
  background-color: var(--ky-surface-3);
}

.ky-nav-toggle__bars {
  position: relative;
  display: inline-block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background-color: currentColor;
  transition: background-color 0.18s var(--ky-ease);
}

.ky-nav-toggle__bars::before,
.ky-nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background-color: currentColor;
  transition: transform 0.18s var(--ky-ease), top 0.18s var(--ky-ease);
}

.ky-nav-toggle__bars::before { top: -6px; }
.ky-nav-toggle__bars::after { top: 6px; }

.ky-nav-toggle[aria-expanded="true"] .ky-nav-toggle__bars { background-color: transparent; }
.ky-nav-toggle[aria-expanded="true"] .ky-nav-toggle__bars::before { top: 0; transform: rotate(45deg); }
.ky-nav-toggle[aria-expanded="true"] .ky-nav-toggle__bars::after { top: 0; transform: rotate(-45deg); }

/* 6.5 图例条 */
.ky-utility {
  background-color: var(--ky-surface-1);
  border-top: 1px dashed rgba(76, 107, 92, 0.5);
}

.ky-utility__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 8px;
  padding-bottom: 8px;
  font-family: var(--ky-font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--ky-muted);
}

.ky-utility__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ky-muted);
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ky-ease), border-color 0.18s var(--ky-ease);
}

.ky-utility__link::before { content: "←"; color: var(--ky-gold); }

.ky-utility__link:hover,
.ky-utility__link:focus-visible {
  color: var(--ky-gold-soft);
  border-bottom-color: var(--ky-gold);
}

.ky-utility__note { white-space: nowrap; }

/* 6.6 阅读进度线 */
.ky-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 120;
  pointer-events: none;
  background-color: transparent;
}

.ky-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background-image: linear-gradient(90deg, var(--ky-gold), var(--ky-gold-soft));
}

/* --- 7. 页脚 ------------------------------------------------------------- */
.ky-footer {
  margin-top: clamp(56px, 8vw, 110px);
  background-color: var(--ky-surface-1);
  border-top: 1px solid var(--ky-line);
  padding: clamp(40px, 5vw, 64px) 0 24px;
}

.ky-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 0.9fr 0.9fr 1.4fr;
  gap: clamp(24px, 3vw, 40px);
}

@media (max-width: 1023px) {
  .ky-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 619px) {
  .ky-footer__grid { grid-template-columns: 1fr; gap: 28px; }
}

.ky-footer__title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-family: var(--ky-font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--ky-muted);
}

.ky-footer__title::before {
  content: "";
  width: 14px;
  height: 2px;
  border-radius: 2px;
  background-color: var(--ky-gold);
  flex: 0 0 auto;
}

.ky-footer__brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ky-footer__brand .ky-brand__mark {
  width: 40px;
  height: 40px;
  border-radius: 13px;
  font-size: 0.9375rem;
}

.ky-footer__brandtext { display: flex; flex-direction: column; }

.ky-footer__brandname {
  font-weight: 700;
  font-size: var(--ky-fs-16);
  line-height: 1.4;
}

.ky-footer__ver {
  font-size: 0.6875rem;
  color: var(--ky-moss);
}

.ky-footer__note {
  margin-top: 14px;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--ky-muted);
  max-width: 34ch;
}

.ky-footer__icp {
  margin-top: 12px;
  font-size: 0.6875rem;
  color: var(--ky-moss);
}

.ky-footer__list { display: flex; flex-direction: column; }

.ky-footer__link {
  display: inline-block;
  padding: 7px 0;
  font-size: 0.9375rem;
  color: var(--ky-muted);
  transition: color 0.18s var(--ky-ease), transform 0.18s var(--ky-ease);
}

.ky-footer__link:hover,
.ky-footer__link:focus-visible {
  color: var(--ky-gold-soft);
  transform: translateX(4px);
}

.ky-footer__list--contact { gap: 14px; }

.ky-contact {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ky-contact__label {
  font-size: 0.625rem;
  letter-spacing: 0.18em;
  color: var(--ky-moss);
}

.ky-contact__value {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--ky-paper);
  word-break: break-word;
}

.ky-copy {
  align-self: flex-start;
  margin-top: 4px;
  padding: 4px 12px;
  border-radius: var(--ky-r-pill);
  border: 1px solid var(--ky-line);
  background-color: transparent;
  color: var(--ky-muted);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  transition: color 0.18s var(--ky-ease),
              border-color 0.18s var(--ky-ease),
              background-color 0.18s var(--ky-ease);
}

.ky-copy:hover,
.ky-copy:focus-visible {
  color: var(--ky-gold-soft);
  border-color: var(--ky-gold);
  background-color: var(--ky-surface-3);
}

.ky-copy.is-copied {
  color: var(--ky-on-gold);
  border-color: transparent;
  background-color: var(--ky-gold);
}

.ky-footer__tip {
  margin-top: 14px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--ky-muted);
}

.ky-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 24px;
  margin-top: clamp(30px, 4vw, 48px);
  padding-top: 20px;
  border-top: 1px dashed rgba(76, 107, 92, 0.5);
}

.ky-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 18px;
}

.ky-legal__link {
  font-size: 0.8125rem;
  color: var(--ky-muted);
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ky-ease), border-color 0.18s var(--ky-ease);
}

.ky-legal__link:hover,
.ky-legal__link:focus-visible {
  color: var(--ky-gold-soft);
  border-bottom-color: var(--ky-gold);
}

.ky-footer__copy {
  font-size: 0.6875rem;
  color: var(--ky-moss);
}

/* --- 8. 通用组件 --------------------------------------------------------- */
/* 8.1 按钮 */
.ky-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: var(--ky-r-pill);
  border: 1px solid var(--ky-line);
  background-color: var(--ky-surface-2);
  color: var(--ky-paper);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: border-color 0.18s var(--ky-ease),
              background-color 0.18s var(--ky-ease),
              color 0.18s var(--ky-ease);
}

.ky-btn:hover,
.ky-btn:focus-visible {
  border-color: var(--ky-gold);
  background-color: var(--ky-surface-3);
  color: var(--ky-gold-soft);
}

.ky-btn--gold {
  border-color: transparent;
  background-image: linear-gradient(180deg, var(--ky-gold-soft), var(--ky-gold));
  color: var(--ky-on-gold);
}

.ky-btn--gold:hover,
.ky-btn--gold:focus-visible {
  color: var(--ky-on-gold);
  filter: brightness(1.08);
  border-color: transparent;
  background-color: transparent;
}

.ky-btn--ghost {
  background-color: transparent;
}

/* 8.2 标签 */
.ky-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--ky-r-pill);
  border: 1px solid var(--ky-line);
  background-color: var(--ky-surface-2);
  font-size: 0.8125rem;
  color: var(--ky-paper);
  white-space: nowrap;
}

.ky-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: var(--ky-r-pill);
  border: 1px solid var(--ky-line);
  background-color: var(--ky-surface-3);
  font-family: var(--ky-font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--ky-muted);
}

.ky-tag--live {
  border-color: rgba(190, 58, 43, 0.7);
  background-color: rgba(190, 58, 43, 0.14);
  color: #E9A79C;
}

/* 8.3 卡片 */
.ky-card {
  display: block;
  padding: clamp(18px, 2.4vw, 26px);
  border-radius: var(--ky-r-lg);
  border: 1px solid var(--ky-line);
  background-color: var(--ky-surface-2);
  transition: border-color 0.18s var(--ky-ease),
              background-color 0.18s var(--ky-ease),
              transform 0.18s var(--ky-ease);
}

.ky-card:hover,
.ky-card:focus-visible {
  border-color: var(--ky-gold);
  background-color: var(--ky-surface-3);
  transform: translateY(-2px);
}

.ky-card__index {
  display: block;
  font-family: var(--ky-font-mono);
  font-size: clamp(1.5rem, 3vw, 2.125rem);
  line-height: 1.1;
  color: var(--ky-gold);
  letter-spacing: 0.02em;
}

.ky-card__title {
  margin-top: 10px;
  font-size: var(--ky-fs-20);
  font-weight: 700;
  line-height: 1.35;
}

/* 8.4 面包屑 */
.ky-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--ky-font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  color: var(--ky-muted);
}

.ky-breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ky-breadcrumb li + li::before {
  content: "/";
  color: var(--ky-moss);
}

.ky-breadcrumb a {
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ky-ease), border-color 0.18s var(--ky-ease);
}

.ky-breadcrumb a:hover,
.ky-breadcrumb a:focus-visible {
  color: var(--ky-gold-soft);
  border-bottom-color: var(--ky-gold);
}

.ky-breadcrumb [aria-current="page"] { color: var(--ky-paper); }

/* 8.5 目录索引 */
.ky-toc {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-left: 1px solid var(--ky-line);
  padding-left: 16px;
}

.ky-toc__link {
  display: block;
  padding: 6px 0;
  font-size: 0.875rem;
  color: var(--ky-muted);
  transition: color 0.18s var(--ky-ease), padding-left 0.18s var(--ky-ease);
}

.ky-toc__link::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 1px;
  margin-right: 10px;
  vertical-align: middle;
  background-color: var(--ky-moss);
  transition: width 0.18s var(--ky-ease), background-color 0.18s var(--ky-ease);
}

.ky-toc__link:hover,
.ky-toc__link:focus-visible { color: var(--ky-paper); }

.ky-toc__link[aria-current="true"] {
  color: var(--ky-gold-soft);
  padding-left: 4px;
}

.ky-toc__link[aria-current="true"]::before {
  width: 20px;
  background-color: var(--ky-gold);
}

/* 8.6 图片容器 */
.ky-media {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--ky-r-lg);
  border: 1px solid var(--ky-line);
  background-color: var(--ky-surface-2);
  aspect-ratio: 16 / 10;
}

.ky-media > img,
.ky-media > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.05) saturate(0.92);
}

.ky-media--wide { aspect-ratio: 21 / 9; }
.ky-media--square { aspect-ratio: 1 / 1; }
.ky-media--tall { aspect-ratio: 4 / 5; }

.ky-media__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(76, 107, 92, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(76, 107, 92, 0.22) 1px, transparent 1px);
  background-size: 46px 46px;
}

.ky-media__label {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 5px 12px;
  border-radius: var(--ky-r-pill);
  border: 1px solid var(--ky-line);
  background-color: rgba(10, 14, 13, 0.78);
  font-family: var(--ky-font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--ky-paper);
}

/* 8.7 表格 */
.ky-table-wrap {
  overflow-x: auto;
  border-radius: var(--ky-r-md);
  border: 1px solid var(--ky-line);
  background-color: var(--ky-surface-1);
}

.ky-table {
  min-width: 560px;
  font-size: 0.9375rem;
}

.ky-table th {
  padding: 12px 16px;
  text-align: left;
  font-family: var(--ky-font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--ky-muted);
  background-color: var(--ky-surface-3);
  white-space: nowrap;
}

.ky-table td {
  padding: 14px 16px;
  border-top: 1px solid rgba(52, 80, 70, 0.6);
  vertical-align: top;
}

.ky-table tbody tr:nth-child(even) { background-color: rgba(34, 54, 45, 0.45); }

.ky-table tbody tr:hover { background-color: var(--ky-surface-3); }

.ky-table .ky-mono { color: var(--ky-gold-soft); }

/* 8.8 显现 */
html.ky-js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s var(--ky-ease), transform 0.5s var(--ky-ease);
}

html.ky-js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* --- 9. 响应式：页头 ----------------------------------------------------- */
@media (max-width: 1099px) {
  .ky-nav__link { padding: 8px 10px; font-size: 0.875rem; }
}

@media (max-width: 959px) {
  .ky-nav-toggle { display: inline-flex; }

  .ky-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 55;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    padding: 18px var(--ky-pad-x) 26px;
    background-color: var(--ky-surface-1);
    border-top: 1px solid var(--ky-line);
    border-bottom: 1px solid var(--ky-line);
    box-shadow: 0 26px 52px rgba(0, 0, 0, 0.5);
  }

  .ky-nav[data-open="true"] { display: flex; }

  .ky-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .ky-nav__link {
    display: block;
    padding: 13px 16px;
    border-radius: var(--ky-r-sm);
    border-color: transparent;
    background-color: var(--ky-surface-2);
    color: var(--ky-paper);
    font-size: var(--ky-fs-16);
  }

  .ky-nav__link[aria-current="page"] {
    border-color: var(--ky-gold);
    background-color: var(--ky-surface-3);
  }

  .ky-cta {
    margin-left: 0;
    padding: 14px 20px;
    font-size: 0.9375rem;
  }
}

@media (max-width: 619px) {
  .ky-brand__mark { width: 40px; height: 40px; border-radius: 13px; font-size: 0.9375rem; }
  .ky-brand__name { font-size: 1rem; }
  .ky-nav-toggle__label { display: none; }
  .ky-nav-toggle { padding: 12px 14px; }
  .ky-utility__note { display: none; }
}

/* --- 10. 动效偏好 -------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  html.ky-js [data-reveal],
  html.ky-js [data-reveal].is-visible {
    opacity: 1 !important;
    transform: none !important;
  }

  .ky-card:hover,
  .ky-card:focus-visible,
  .ky-footer__link:hover,
  .ky-footer__link:focus-visible { transform: none; }
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}